But Himsagar takes the route via Rohtak, which at least from IRI's map is still under electrification and thus gets a loco change at NDLS. (The route via UMB is fully electrified). Besides, if the question is about end-to-end journeys, then TVC SJ is probably the correct answer as Himsagar doesn't run end-to-end with the same loco. If partial journeys are considered then it is probably the correct answer.